In addition to being beautifully finished, the totten jacket combines the properties of wool (warm, dry, soft) with the windstopper technology. The cuffs and the adjustable hood make it possible to seal your jacket from the outside when it gets really cold/windy. It is especially warm compared to its size/weight. I am 5'6 and 37.5" (chest) and got the medium size, which fits perfecly.